Mad Cow (Disease) Options

[Fawn]

I apologize if this has already been asked, but..

I recently got my mitts on a copy of Harvest Moon: Animal Parade. So far, I'm loving it, but I have discovered a bothersome trend.
Every day, when I wake up to feed my calf, she's always mad. I've seen lots of other people complain about this on other websites, but no direct answer was given.

Is there a reason my calf is so angsty? It's not like I don't feed her or forget to brush her or anything. o.O

Any tips on why this happens, or how to prevent it would be greatly appreciated!